its meant to say a dog ages in a way that would be similar to us if we multiplied each of our years by 7. so a 10 year old dog would be similar to a 70 year old human in his dog - lifespan. Of course that may have changed a little as domestication research has improved animal health and the same thing for humans.

Let me fix your sentence.
"Again, i say, a single year is a unit of time, one year is, and always will be the time required for the earth to revolve around the sun, perhaps you could find a book on such matters and read it?"

Now let me rephrase it
"I am a complete faggot, and i enjoy sucking large cocks all day long."

Actually it is. The implication of decreased perception of "duration" that a dog experiences "relative" to the perceived "duration" of a human, demonstrates that an actual instance of "Time Dilation" occurs between the man and the dog. A dog's lifespan, is approximately one seventh the duration of a Human's average life expectancy, therefore the dog can be said to be 'moving'* forward in time at seven times the speed of a human being moving forward in the same hypothetical medium. Thus, the DOG will experience "years" at seven times the rate of a Human.

The implication of sequential birthday discrepancy, is a HOOT! Unless you're a chimp

* (Movement is, of course implied since transiting through a meta-element like 'time' is a hypothetical construct that can not be meaningfully described non-mathematically,)

In relative terms, it is. If we could grasp the inner thoughts of a dog, we would be able to tell that one year to him goes by as fast as seven years for us. Inb4 "So does that mean everything is in fast motion for dogs?"